package com.yf.config;

import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.Ordered;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
import org.springframework.web.filter.CorsFilter;

import java.util.Arrays;
import java.util.List;


/**
 * 网关全局设置，允许跨域
 *
 * @author bool
 * @date 2019-08-13 17:28
 */

@Configuration
public class CorsConfig {

    @Bean
    public FilterRegistrationBean<CorsFilter> corsFilter() {
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        CorsConfiguration config = new CorsConfiguration();

        config.setAllowCredentials(true);
        config.setAllowedOriginPatterns(List.of("*"));
        config.addAllowedHeader(CorsConfiguration.ALL);
        config.setAllowedMethods(Arrays.asList("POST", "GET", "OPTIONS"));
        source.registerCorsConfiguration("/**", config);
        FilterRegistrationBean<CorsFilter> bean = new FilterRegistrationBean<>(new CorsFilter(source));
        bean.setOrder(Ordered.HIGHEST_PRECEDENCE);
        return bean;
    }
}
